1667676760913 has 2 divisors, whose sum is σ = 1667676760914. Its totient is φ = 1667676760912.

The previous prime is 1667676760889. The next prime is 1667676760927. The reversal of 1667676760913 is 3190676767661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1075466480209 + 592210280704 = 1037047^2 + 769552^2 .

It is a cyclic number.

It is not a de Polignac number, because 1667676760913 - 2⁸ = 1667676760657 is a prime.

It is a super-2 number, since 2×1667676760913² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1667676760913.

It is not a weakly prime, because it can be changed into another prime (1667676760933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 833838380456 + 833838380457.

It is an arithmetic number, because the mean of its divisors is an integer number (833838380457).

Almost surely, 2^{1667676760913} is an apocalyptic number.

It is an amenable number.

1667676760913 is a deficient number, since it is larger than the sum of its proper divisors (1).

1667676760913 is an equidigital number, since it uses as much as digits as its factorization.

1667676760913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72013536, while the sum is 65.

The spelling of 1667676760913 in words is "one trillion, six hundred sixty-seven billion, six hundred seventy-six million, seven hundred sixty thousand, nine hundred thirteen".